[mythtv-users] This is how I adjusted the transparency of the OSD images

[Daryl]

On July 1, 2007 01:25:21 am MartinG wrote:
> Hi list.
>
> First, let me thank the developers - great work!
>
> I just want to share my notes on how I adjusted the transparency of
> the OSD popup in MythTV. The reason for doing this, is that I live in
> a country where we never dub any programs, but use subtitles alot. And
> my preferred osd theme puts the volume popup right on top of the
> subtitles, which can be a bit annoying at times (especially since the
> osd timeout values in setup doesn't seem to work,
> mythtv-0.20.1-158.fc6). Anyhow, these are my notes on what I did to
> increase transparency in osd images, so that I can read the subtitles
> through eg. the volume image:
>
> --------------
> Adjust the translucency/transparency of the OSD:
> I the use blootube-osd (installation details below).
>
> The images are located in
> '/usr/share/mythtv/themes/blootube-osd'
> (This is on an Fedora Core 6 box, it might be somewhere else on other
> distros)
>
> Save relevant images to *.orig first:
> # cd /usr/share/mythtv/themes/blootube-osd
> # for f in *.png; do cp $f $f.orig; done
>
> Then adjust the Alpha level.
> This is how to do it using the 'showfoto' editor (KDE photo
> management, part of digiKam I think):
> Open the osd image, then from the menu, choose
> "Fix", "Colors", "Level Adjust..." (or just press Ctrl-L)
> Reduce the "Maximal level output" from 255 to ie. 130. Save.
> (I have an old CRT TV. For a more modern TV, I guess another value
> would be appropriate)
> Relevant images for this theme are:
> settings.png
> pause.png
> osd_mid.png
> (and maybe others)
> The volume osd is using the 'pause.png' image.
>
> Of course, you can also use The Gimp to do this:
> Open image, choose "Layer", "Colors", "Levels..." and select "Channel:
> Alpha" and reduce the maximum output level from 255 to your desired
> value - I've used 130 for now. Save.
>
>
> You need to close and restart 'mythfrontend' to activate the changes
> (the theme cache has to be rebuilt I guess)

Works great. 130 is a little much for my taste, but easy to adjust.
Thanks for the tip.

Daryl